JPH102481A - Sewage pipe repair member and repair method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cable from hanging down at a repair part. SOLUTION: At the time of repairing a damaged sewage pipe 14, a part including the damaged part of the sewage pipe 14 is cut and eliminated, and in the state of a cable 12 being hooked to hooks 28, a repair pipe 10 with a first pipe member 20 and a second pipe member 22 jointed is set to the eliminated part. A joint part between the first pipe member 20 and the second pipe member 22, and a joint part between the repair pipe 10 and the remaining pipe 14 is covered with a half split short pipe 16, and the short pipe 16 is fixed by iron steel 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member for repairing a sewer pipe and a method for repairing the same, and more particularly to a member for repairing a sewer pipe for repairing a sewer pipe through a cable (such as a communication cable) in a pipeline. About the method.

[0002]

2. Description of the Related Art An example of a method for laying a communication cable using a sewer pipe is disclosed in, for example, Japanese Patent Publication No. 3-50483. In this technique, a drill hole is formed in an upper inner wall of a sewer pipe, and a holder is pressed into this hole to lock a cable. In the case where such a sewer pipe is damaged, conventionally, the damaged portion is cut and removed, and a tubular repair member joining the first pipe member and the second pipe member is set in the removed portion, and the first repaired member is removed. The joint between the pipe member and the second pipe member and the joint between the repair member and the remaining sewer pipe were sealed with a water-blocking joining material.

[0003]

In the prior art, a damaged portion is removed, and a repair member is set in the removed portion to repair the sewer pipe. However, when the portion provided with the holder is removed, However, since the cable cannot be locked at that portion, the cable hangs down, and there is a risk that the flow of sewage may be obstructed or foreign matter may be caught by the cable and the cable may be damaged.

[0004] Therefore, a main object of the present invention is to provide a repair member and a repair method for a sewer pipe capable of preventing a cable from hanging down.

[0005]

The first invention comprises a first pipe member and a second pipe member which have the same shape as the sewer pipe to be repaired when the respective circumferential end faces are joined together, and the second pipe member has A hook is provided on the inner wall surface, and the first pipe member
It is a repair member for a sewer pipe in which a pipe member is arranged on the upper side.

According to a second aspect of the present invention, the damaged portion of the sewer pipe is cut and removed, and the first pipe member and the second pipe member are joined in a state where the cable is hooked on a hook provided on the second pipe member. The repair pipe is set on the removed portion with the second pipe member facing upward, and the junction between the first pipe member and the second pipe member and the junction between the repair pipe and the remaining sewer pipe are covered with a half short pipe. This is a method for repairing sewer pipes.

[0007]

According to the first aspect of the present invention, since the hook is provided on the inner wall surface of the second pipe member, the cable can be locked by the hook. In the second invention, the repair pipe joining the first pipe member and the second pipe member is set to the removed portion while the cable is hooked on the hook provided on the second pipe member. Can lock the cable. In addition, since the joint between the first pipe member and the second pipe member and the joint between the repair pipe and the remaining sewer pipe are covered with the short half pipe, water leakage can be prevented.

[0008]

According to the first and second aspects of the present invention, it is possible to prevent the cable from hanging down. Therefore, it is possible to prevent the cable from being damaged by obstructing the flow of sewage or catching foreign matter on the cable.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A repair pipe 10 as a repair member for a sewer pipe according to the embodiment shown in FIGS. 1 and 2 is, for example, as shown in FIG. 3, a sewer pipe 14 in which a cable 12 (communication cable or the like) is wired. In order to prevent the cable 12 from hanging down at the repaired portion, a half short pipe 16 is attached to the outer peripheral surface of the repair pipe 10. Here, the sewer pipe 14 is made of vinyl chloride, and a cable 1 is provided on an upper inner wall surface of the sewer pipe 14.
2 are locked by hooks 18 at predetermined intervals.

The repair pipe 10 (FIGS. 1 and 2) is obtained by cutting a part of a pipe extruded with vinyl chloride or the like, and when the circumferential end faces are joined together, the sewer pipe 14 to be repaired. And a first tube member 20 and a second tube member 22 which have the same shape as the first tube member. The circumferential length of the first pipe member 20 is set longer than the circumferential length of the second pipe member 22, and the circumferential end face 24 of the first pipe member 20 is inclined at a predetermined angle with respect to the vertical direction.

On the other hand, the circumferential end face 26 of the second pipe member 22 is inclined at a predetermined angle so as to come into contact with the circumferential end face 24 of the first pipe member 20.
Hook 28 is provided for locking hook 2. As shown in FIG. 4, the hook 28 includes a hook-shaped main body 28a made of vinyl chloride or the like, and a screw portion 28b is formed at one end of the main body 28a. Then, the screw portion 28b is screwed into a screw hole 30 formed on the inner surface of the second pipe member 22. The number of hooks 28 may be changed as appropriate according to the length of the repair tube 10 and the like.

The halved short tubes 16 (FIG. 3) are made of vinyl chloride, each having an axial length greater than the axial length of the repair tube 10 (first tube member 20 and second tube member 22) and repair. It includes an upper piece 16a and a lower piece 16b having an inner surface along the outer surface of tube 10. Repair pipe 10 and halved short pipe 16
When the sewage pipe 12 is repaired by using the method, first, as shown in FIG. Subsequently, as shown in FIG. 6, the first pipe member 20 is placed on the lower side of the second pipe member 22 while the cable 12 exposed at the removed portion is hooked on a hook 28 provided on the inner surface of the second pipe member 22. The repair pipe 10 is set on the removed portion with the circumferential end faces of the two facing each other with the side facing upward. Then, as shown in FIG. 3, the short pipe 16 (the upper piece 16 a and the lower piece 16 b) coated with an adhesive on the inner peripheral surface is used to repair the repair pipe 10 (the first pipe member 20 and the second pipe member 22) and The first pipe member 20 is placed over the outer peripheral surface of the remaining sewer pipe 14.
And the joint between the repair pipe 10 and the remaining sewer pipe 14 are covered. Finally, a wire 34 is wound around the outer peripheral surface of the half short tube 16 and is firmly fixed.

According to this embodiment, since the cable 12 can be locked by the hook 28, the cable 1 can be fixed at the repaired portion.
2 can be prevented from hanging down. In addition, half short pipe 16
This covers the joint between the first pipe member 20 and the second pipe member 22 and the joint between the repair pipe 10 and the remaining sewer pipe 14, so that water leakage can be prevented. In the above-described embodiment, the hook 28 is attached to the second pipe member 22 by screwing the screw portion 28b into the screw hole 30. For example, as shown in FIG. The saddle 28c may be formed and adhered to the inner surface of the second pipe member 22. For example, as shown in FIG. 8, one end of the hook 28 may be welded to the inner surface of the second pipe member 22. You may. Also, for example, FIG.
As shown in (1), one end of the hook 28 may be inserted into a hole 36 formed in the inner surface of the second pipe member 22 and bonded.

The shape of the joint (end surfaces 24 and 26) between the first pipe member 20 and the second pipe member 22 may be arbitrary.
For example, as shown in FIG. 10, a step may be provided. When the length of the removed portion is long, for example, as shown in FIG. 11, two (or three or more) repair pipes 1 are provided.
0 may be set side by side in the removed portion. However, even in this case, it is necessary to use a half pipe 16 having a length that can cover all the repair pipes 10.

Further, in the above-described embodiment, the case where the sewer pipe 14 having a circular cross section is repaired is shown. However, the present invention can be applied to the case where the sewer pipe 14 having an oval cross section is repaired. For example, as shown in FIG. 12, a repair tube 10 having an oval cross section and a short half tube 16 are used.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of FIG.

FIG. 3 is an illustrative view showing a use state of the embodiment in FIG. 1;

FIG. 4 is an illustrative view showing a mounting structure of a hook;

FIG. 5 is an illustrative view showing a state where a damaged portion of the sewer pipe is removed;

FIG. 6 is an illustrative view showing a state where a repair member is set in a removed portion.

FIG. 7 is an illustrative view showing another attachment structure of the hook;

FIG. 8 is an illustrative view showing another attachment structure of the hook;

FIG. 9 is an illustrative view showing another attachment structure of the hook;

FIG. 10 is an illustrative view showing another joint structure between the first pipe member and the second pipe member;

FIG. 11 is an illustrative view showing a state where two repair members are used side by side;

FIG. 12 is an illustrative view showing another embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Repair pipe 12 ... Cable 14 ... Sewer pipe 16 ... Half split short pipe 20 ... 1st pipe member 22 ... 2nd pipe member 24, 26 ... End face 18, 28 ... Hook 30 ... Screw hole 32 ... Breakage point 34 ... Number line

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Miyata 5-115 Shiroyama, Komaki-shi, Aichi Pref.

Claims (3)

[Claims] 1. A first pipe member and a second pipe member having the same shape as a sewer pipe to be repaired when respective circumferential end faces are joined to each other, wherein a hook is provided on an inner wall surface of the second pipe member, First
A repair member for a sewer pipe, wherein a pipe member is disposed on a lower side and the second pipe member is disposed on an upper side. 2. The tubing according to claim 1, further comprising a half short pipe having an axial length longer than an axial length of said first pipe member and said second pipe member and covering the entire circumference of said sewer pipe. Repair parts for sewer pipes. 3. A repair pipe in which a first pipe member and a second pipe member are joined while a cable is hooked on a hook provided on a second pipe member, wherein the repair pipe is cut and removed. The second pipe member is set on the removed portion with the upper side, and the junction between the first pipe member and the second pipe member and the junction between the repair pipe and the remaining sewer pipe are covered with a half short pipe. How to repair a sewer pipe.